JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Prerequisites

Signals and Systems

Course Objectives:

• To develop ability to analyze linear systems and signals
• To develop critical understanding of mathematical methods to analyze linear systems and signals
• To know the various transform techniques
• To analyse sampling principles

Course Outcomes

At the end of this course, students will demonstrate the ability to

• Understand the concepts of continuous time and discrete time systems.
• Analyse systems in complex frequency domain.
• Understand sampling theorem and its implications.

List of Experiments:

• 1. Frequency Spectrum of continuous signal
• 2. Frequency Spectrum of impulse signals (Time Bounded signals)
• 3. Frequency Response Analysis using any Software
• 4. Frequency Response Analysis for any Transfer Function (Preferably Transformer)
• 5. Write a program to generate the discrete sequences
• (i) U n i t step(ii) Unit impulse(iii) Ramp(iv)Periodic sinusoidal sequences. (Plot all the sequences).
• 6. Find the Fourier transform of a square pulse. (Plot its amplitude and phase spectrum).
• 7. Write a program to convolve two discrete time sequences. (Plot all the sequences).Verify the result by analytical calculation.
• 8. WriteaprogramtofindthetrigonometricFourierseriescoefficientsofarectangular periodic signal. Reconstruct the signal by combining the Fourier series coefficients with appropriate weightings.
• 9. Write a program to find the trigonometric and exponential Fourier series coefficients of a periodic rectangular signal. Plot the discrete spectrum of the signal.
• 10. Generateadiscretetimesequencebysamplingacontinuoustimesignal.Showthat with sampling rates less than Nyquist rate, aliasing occurs while reconstructing the signal.
• 11. Write a program to find the magnitude and phase response of first order low pass and high pass filter. Plot the responses in logarithmic scale.
• 12. Write a program to find the response of a low pass filter and high pass filter, when a speech signal is passed through these filters.

TEXT BOOKS:

• 1. A. V. Oppenheim, A. S. Willsky and S. H. Nawab, “Signals and systems”, Prentice Hall India, 1997.
• 2. J. G. Proakis and D. G. Manolakis, “Digital Signal Processing: Principles, Algorithms, and Applications”, Pearson, 2006.

REFERENCES:

• 1. H. P. Hsu, “Signals and systems”, Schaum’s series, McGraw Hill Education, 2010.
• 2. S. Haykin and B. V. Veen, “Signals and Systems”, John Wiley and Sons, 2007. R18 B.TECH EEE III YEAR
• 3. A. V. Oppenheim and R. W. Schafer, “Discrete-Time Signal Processing”, Prentice Hall, 2009.
• 4. M. J. Robert “Fundamentals of Signals and Systems”, McGraw Hill Education, 2007.
• 5. B. P. Lathi, “Linear Systems and Signals”, Oxford University Press, 2009. R18 B.TECH EEE III YEAR